From a77640165e21b9dc43aa41cd87033b1a02654062 Mon Sep 17 00:00:00 2001
From: Delyan Angelov <delian66@gmail.com>
Date: Sat, 25 Apr 2020 23:43:46 +0300
Subject: [PATCH] compiler: faster vmod lookup

---
 vlib/v/vmod/vmod.v | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/vlib/v/vmod/vmod.v b/vlib/v/vmod/vmod.v
index fe724e7fc1..c91caa836e 100644
--- a/vlib/v/vmod/vmod.v
+++ b/vlib/v/vmod/vmod.v
@@ -99,7 +99,7 @@ fn (mcache mut ModFileCacher) traverse(mfolder string) ([]string, ModFileAndFold
 			// if its source folder is different
 			res := ModFileAndFolder{ vmod_file: os.join_path( cfolder, 'v.mod'), vmod_folder: cfolder }
 			return folders_so_far, res
-		}
+		}		
 		if mcache.check_for_stop( cfolder, files ) {
 			break
 		}
@@ -139,7 +139,12 @@ fn (mcache mut ModFileCacher) get_files(cfolder string) []string {
 	if cfolder in mcache.folder_files {
 		return mcache.folder_files[ cfolder ]
 	}
-	files := os.ls(cfolder) or { return [] }
+	mut files := []string
+	if os.exists( cfolder ) && os.is_dir(cfolder) {
+		if listing := os.ls(cfolder) {
+			files = listing
+		}
+	}
 	mcache.folder_files[ cfolder ] = files
 	return files
 }